Bay City, MI has a population of 34,110 and is the 1,242nd largest city in the United States. The population density is 3,356 per sq mi which is 3228% higher than the Michigan average and 3604% higher than the national average. The median age in Bay City is 37 which is approximately 7% lower than the Michigan average of 40. In Bay City, 47% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 88% of Bay City residents were born in Michigan, 9% were born out of state, 0% were born outside of the United States and 2% were foreign born.
